---
product_id: 295384822
title: "300W DIY 2n3055 Transistor Based Stereo Audio Amplifier Board with 24 Volt Converter Circuit (Better Than 4440 IC)"
brand: "tech and trade"
price: "7940 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/295384822-300w-diy-2n3055-transistor-based-stereo-audio-amplifier-board-24
store_origin: IS
region: Iceland
---

# 24V DC converter with 5-7A supply 300W stereo power output Independent bass, treble & volume controls 300W DIY 2n3055 Transistor Based Stereo Audio Amplifier Board with 24 Volt Converter Circuit (Better Than 4440 IC)

**Brand:** tech and trade
**Price:** 7940 kr
**Availability:** ✅ In Stock

## Summary

> 🎵 Amplify your sound, elevate your space — don’t just listen, experience!

## Quick Answers

- **What is this?** 300W DIY 2n3055 Transistor Based Stereo Audio Amplifier Board with 24 Volt Converter Circuit (Better Than 4440 IC) by tech and trade
- **How much does it cost?** 7940 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/295384822-300w-diy-2n3055-transistor-based-stereo-audio-amplifier-board-24)

## Best For

- tech and trade enthusiasts

## Why This Product

- Trusted tech and trade brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Grade Components:** Utilizes four 2N3055 transistors for superior audio amplification beyond typical ICs.
- • **Effortless Integration:** Compact 15x15x10 cm design with easy surface mount installation.
- • **Powerhouse Performance:** Delivers a robust 300W stereo output for immersive sound.
- • **Reliable Voltage Boost:** Built-in 24V converter ensures stable power with up to 7A current supply.
- • **Precision Audio Control:** Fine-tune your bass, treble, and volume with dedicated potentiometers.

## Overview

This 300W DIY stereo audio amplifier board features four powerful 2N3055 transistors and a 24V DC converter circuit, delivering 150W per channel at 4 ohms. It includes independent bass, treble, and volume controls via potentiometers, housed in a compact 15x15x10 cm surface-mount design. Ideal for audiophiles and DIY enthusiasts seeking high-fidelity sound with easy installation and reliable power supply.

## Description

THIS IS AN AUDIO AMPLIFIER CIRCUIT BOARD BASED ON 2n3055 TRANSISTORS. THIS BOARD USES FOUR 2n3055 TRANSISTORS AND A 24 VOLTS DC POWER SUPPLY TO GENERATE AN OUTPUT OF ABOUT 300 WATTS. THIS BOARD HAS SEPARATE CONTROLS FOR BASS, TREBLE, VOLUME . THESE CONTROLS ARE OPERATED BY THREE POTENTIOMETERS, ALSO KNOWN AS TONES. THIS BOARD HAS STEREO OUTPUT. BOTH THE CHANNELS PROVIDE ABOUT 150 WATTS AT FOR 4 OHMS SPEAKERS. THIS BOARD IS VERY EASY TO INSTALL. THE ENTIRE PRODUCT COMPRISES OF THREE INDIVIDUAL PARTS. FIRST PART IS THE MAIN BOARD. THE MAI BOARD CONTAINS ALL THE NECESSARY AMPLIFIER COMPONENTS. THE MAIN BOARD HAS THE CONTROLLING CONNECTIONS OF VOLUME, BASS, TREBLE ETC. THIS BOARD WILL BE PROVIDED AS SHOWN IN THE IMAGE. ALL THE POTENTIOMETERS WILL BE SOLDERED IN, EXACTLY LIKE THE IMAGE SHOWS. SECOND PART IS THE POWER SUPPLY. THE POWER SUPPLY TAKES UP A VOLTAGE OF 12 VOLTS AND THEN CONVERTS IT TO 24 VOLTS. THIS SUPPLY BOARD CAN PROVIDE THE VOLTAGE OUTPUT OF ABOUT 5 TO 7 AMPERES.

## Features

- 300 WATTS STEREO OUTPUT.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item dimensions L x W x H | 15 x 15 x 10 Centimeters |
| Voltage | 24 Volts |
| Manufacturer | TECH AND TRADE SOLUTIONS, B-2, KAMAL VIHAR, KARAWAL NAGAR, DELHI 110090. |
| Maximum Supply Voltage | 24 Volts |
| Minimum Supply Voltage | 24 Volts |
| Mounting Type | Surface Mount |
| Brand | TECH AND TRADE |
| Number of Channels | 2 |
| Output Power | 3E+2 Watts |
| Colour | MULTICOLOUR |
| Speaker Surround Sound Channel Configuration | 2 |
| Item Weight | 450 g |
| Product Dimensions | 15 x 15 x 10 cm; 450 g |
| Item part number | TNTS3055BS |
| Item Height | 10 Centimeters |
| Item Width | 15 Centimeters |
| Wattage | 300 Watts |
| Power Source | corded electric |
| Included Components | 1 MAIN BOARD , 1 POWER SUPPLY AND MANUAL |
| Are batteries included? | No |
| Lithium battery energy content | 300 Watt Hours |

## Product Details

- **Item dimensions L x W x H:** 15 x 15 x 10 Centimeters
- **Voltage:** 24 Volts
- **Manufacturer:** TECH AND TRADE SOLUTIONS, B-2, KAMAL VIHAR, KARAWAL NAGAR, DELHI 110090.
- **Maximum Supply Voltage:** 24 Volts
- **Minimum Supply Voltage:** 24 Volts

## Images

![300W DIY 2n3055 Transistor Based Stereo Audio Amplifier Board with 24 Volt Converter Circuit (Better Than 4440 IC) - Image 1](https://m.media-amazon.com/images/I/91Bymla8Q2L.jpg)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-18*